#!/usr/bin/python
#coding:utf-8
#@Author:醉清风

import gmpy2
import libnum
c = 9217979941366220275377875095861710925207028551771520610387238734819759256223080175603032167658086669886661302962985046348865181740591251321966682848536331583243529
m = gmpy2.isqrt(c)
m = int(m)
m_text = libnum.n2s(m)
print(m_text)
